3LPE Coated Seamless Steel Pipes
3LPE Coated Pipes
3LPE Coating for Carbon Steel Pipes and API 5L Grade B Line Pipes

DIN 30670 Carbon Steel Pipe
3LPE Coated Pipes Specifications
| Specifications | Values |
|---|---|
| Size | 8 inch to 64 inch |
| Grades | Grade A-L210 / Grade B-L245 |
| Layers |
|
| OD | 60 to 3000 (MM) |
| END | Plain /Bevel/ Screwed /Threaded |
| Diameter (Pipe) | 1.3.5 2.90mm to 48+ 3.1220 mm+ |
| Coating |
|
| Equivalent | EN 10204 |
| Hardness | Shore D 63 |
| Temperature Range | (-20°C - 110°C) |
3LPE Coated Seamless Steel Pipes as per International Standard
| International Standards |
|
|---|---|
| Coating type | 3 Layer Polyethylene |
| Lengths limit | Up to 12m |
| Connections | Thread & Weld |
| Materials list |
|
| 3LEP Layers |
|
| Lifespan of 3LPE Coated Pipes | 75 (Years)+ |
| Coating Thickness | 4.2 Millimetre Max |
| Type | Seamless Steel Pipes and 3LPE Pipeline Coating |
| Size range | 25 mm to 3000 mm |
| Wall Thickness | SCH5S to SCH160, XXS |
| Standards | ANSI, JIS, DIN, EN, ISO. |
| Specialized in |
|
| Mild Steel Strength | 125 kg/cm² (ASTM D 4541) |
| Temperature Limits | -40°C to 80°C |
DIN 30670 3LPE Multi-Layer Polyethylene Coated Pipe for Sour Service
Thickness of DIN 30670 Polyethylene Coating Steel Pipe
| Thickness level | N,V,S |
|---|---|
| Layers |
|
| Design Temperature |
|
| Pipe Type |
|
| Anti Corrosion Layer |
|
3-layer PE Polyolefin Coating material Testing and Inspection
3LPE Coated Seamless Steel Pipes Impact and Bond Strength
Impact Strength
| Nominal Size (DN) | Ø |
|---|---|
| Less Than 65 | 0,70 |
| 65 To Below 200 | 0,85 |
| From 200 | 1,0 |
Three Layer Polyethylene (3LPE) Coated Line Pipe Standard
| Standard |
|---|
| IS 3581 |
| CSA Z245.21 |
| DIN 30670 |
| AS 4321 |
Applications of 3LPE Coated Pipes
Coating Thickness of 3LPE Coated Line Pipe
| Nominal Size of Pipes | Min Normal Coating Thick, in (MM) |
|---|---|
| Over DN 250 to below DN 500 | 2.2 |
| From DN 800 | 3.0 |
| Up to DN 100 | 1.8 |
| From DN 500 to below DN 800 | 2.5 |
| Over DN 100 up to DN 250 | 2.0 |
3LPE Coated Pipes Means
Mechanical Properties of 3LPE Carbon Steel Pipe
| Gr. | Yield Point in (Mpa) | Rm Tensile Strength in (Mpa) | Delivery Condition | A Elongation |
|---|---|---|---|---|
| C | ≥275 Mpa | ≥485 | Annealed | 20 % |
| B | ≥240 Mpa | ≥415 | ||
| A | ≥205 Mpa | ≥330 |
3LPE Pipe Coating Process
Coating Range of DIN 30670 Polyethylene Coating Steel Pipe
| Coating Range | Size |
|---|---|
| O-DIE Max Coating Thick. | 3.5 (MM) |
| Min Coat-able Steel Size | 1/8 |
| Color of Commercial Coating | Yellow, Red |
| Max Coat-able Steel Size | 60 |
| T-DIE Max Coating Thick. | 5.0 (MM) |
| Min Coating Thick. | 1.2 (MM) |
| T-DIE Pipe Coating | 8/60 |
| O-DIE Pipe Coating | 1/8 - 8 |
Minimum Requirements of 3LPE Lined Steel Pipe Coating Thickness
| Nominal Size | Min 3LPE Coating Thickness in mm |
|---|---|
| Up to DN 100 | 1.8 |
| Over DN 100 - DN 250 | 2 |
| Over DN 250 - below DN 500 | 2.2 |
| From DN 500 to below DN 800 | 2.5 |
| From DN 800 | 3 |
3LPE Coated Pipes Features
- Superb Chemical and Corrosion Resistance
- Resistance to Disbonding at the Cathode
- Offer a Long Lifespan and Excellent Performance Qualities.
Grades of 3LPE Multi-Layer Polyethylene Coated Pipe
| Types | Grades |
|---|---|
| Carbon Steel Pipe |
|
| API 5L Pipe |
|
| Mild Steel Pipe |
|
Value Added Services of 3LPE Coated Line Pipe
- Recrystallization Annealing
- Carburizing
- Forging Mold Blank
- Annealing
- Mechanical Finishing
- Tempering
- Blanking
- Cold Extrusion Molding
- Mechanical Rough Machining
3LPE Coated Pipes HSN Code
| Grade | HSN Code |
|---|---|
| 3LPE Coated Pipes | 730619 |

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